Derivative Financial Instruments and Risk Management (Details 6) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Offsetting Liabilities
Gross Amount of Recognized Liabilities	$ (73)	$ (50)
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	(73)	(50)
Financial Instruments	46	41
Cash Collateral Pledged	0	0
Net Amount of Liabilities	(27)	(9)
Machinery, Energy & Transportation
Offsetting Liabilities
Gross Amount of Recognized Liabilities	(61)	(40)
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	(61)	(40)
Financial Instruments	39	32
Cash Collateral Pledged	0	0
Net Amount of Liabilities	(22)	(8)
Financial Products
Offsetting Liabilities
Gross Amount of Recognized Liabilities	(12)	(10)
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	(12)	(10)
Financial Instruments	7	9
Cash Collateral Pledged	0	0
Net Amount of Liabilities	$ (5)	$ (1)